6551424

Appears in sequences

• A simple grammar: sequences of pairs of cycles.at n=9A052811
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = Sum_{j=0..n} (k*j)!* |Stirling1(n,k*j)|.at n=75A357881